Boundary Conditions; Sd42935 Expansions; Scratching - Siemens SINUMERIK 840D sl Function Manual

W1: Tool offset

2.18 Boundary conditions

ROT Z60
The direction of the applicate (Z direction) remains unchanged; the main component of L2 now
lies in the direction of the new X axis; the main component of L1 now lies in the direction of the
negative Y axis. As a consequence, the return value (<Status>) is "1", <AxInd> contains the
values (2, -3, 1).
In this case, the associated matrix (<Matrix>) is:
2.18 Boundary conditions
2.18.1

SD42935 expansions

Transformation of wear values
Which wear components in conjunction with the instructions TOWMCS (wear values in the
machine coordinate system) and TOWWCS (wear values in the workpiece coordinate system)
are transformed or not transformed can be defined using:
SD42935 $SC_WEAR_TRANSFORM (transformation of wear values)
2.18.2

Scratching

Scratching
If the "Scratch" function is used in the reset state, then regarding the initial setting value, the
following must be taken into consideration:
● The wear components are evaluated depending on the initial settings of the G groups
TOWSTD, TOWMCS and TOWWCS.
● If a value other than the initial setting is needed to ensure correct calculation, scratching may
be performed only in the STOP state.
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Function Manual, 06/2019, A5E47435126B AA
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